Article
Engineering, Biomedical
Andrew Y. W. Wong, Amanda Farias Zuniga, Peter J. Keir
Summary: This study aimed to investigate the effects of blood flow occlusion and sex-specific differences in tendon-subsynovial connective tissue relative strain. The results showed that occlusion and fast movement speed reduced the displacement of flexor digitorum superficialis tendon and subsynovial connective tissue. Movement speed also had a significant effect on tendon-subsynovial connective tissue shear outcomes. These findings provide insights into the pathophysiology of carpal tunnel syndrome and the motion of carpal tunnel tissue when the local fluid environment is disturbed.
CLINICAL BIOMECHANICS
(2023)
Article
Engineering, Biomedical
Mohammad Hosseini-Farid, Verena J. M. M. Schrier, Julia Starlinger, Chunfeng Zhao, Peter C. Amadio
Summary: This study found that the relative movement of subsynovial tissue increases in patients with carpal tunnel syndrome after intervention, especially in those with mild disease severity undergoing surgery.
CLINICAL BIOMECHANICS
(2021)
Article
Orthopedics
Amanda Farias Zuniga, Amer A. Ghavanini, Gaspar Israelian, Peter J. Keir
Summary: The study found that ultrasound measurements can be used as an effective tool to predict changes in nerve function in CTS patients.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2021)
Article
Medicine, General & Internal
Kyoko Muneshige, Kenji Onuma, Koji Sukegawa, Yuya Otake, Gen Inoue, Masashi Takaso, Kentaro Uchida
Summary: This study found that COL5A1 expression is elevated in patients undergoing hemodialysis and that B2-MG may regulate its expression, suggesting a potential mechanism for the development of carpal tunnel syndrome in these patients.
CUREUS JOURNAL OF MEDICAL SCIENCE
(2022)
Article
Engineering, Biomedical
Linjing Peng, Yu Wu, Kishor Lakshminarayanan, Aili Zhang, Yaokai Gan, Yiming Li, Yifei Yao
Summary: This study investigates the relationship between carpal tunnel pressure and shear wave velocity (SWV) in the transverse carpal ligament (TCL) using a subject-specific carpal tunnel finite element model reconstructed by MRI imaging. The results show that SWV in the TCL is strongly affected by carpal tunnel pressure and TCL Young's modulus. An empirical equation is proposed to estimate carpal tunnel pressure by measuring SWV in the TCL, potentially enabling a non-invasive diagnosis of CTS.
MEDICAL ENGINEERING & PHYSICS
(2023)
Article
Surgery
Lu Yu, Jingyi Jia, Kishor Lakshminarayanan, Yiming Li, Yaokai Gan, Yifei Yao
Summary: This study investigated the effects of the location of transverse carpal ligament (TCL) transection on the biomechanical property of the carpal arch structure. It was found that radial transections were more biomechanically favorable in reducing carpal tunnel constraint for median nerve decompression compared to ulnar transections.
FRONTIERS IN SURGERY
(2023)
Article
Surgery
S. Tullie, A. Wiberg, D. Furniss, A. Schmid
Summary: This pilot study used MRI to assess sub-synovial connective tissues (SSCT) in patients with carpal tunnel syndrome (CTS). The study found decreased SSCT signal intensity and decreased wrist index in the distal carpal tunnel of CTS patients, which were normalized after surgery. These preliminary findings warrant further investigation in a larger cohort.
JOURNAL OF PLASTIC RECONSTRUCTIVE AND AESTHETIC SURGERY
(2022)
Review
Biology
Luise Schaefer, Nicola Maffulli, Alice Baroncini, Joerg Eschweiler, Frank Hildebrand, Filippo Migliorini
Summary: This study compared the efficacy of local steroid injections (LSIs) and carpal tunnel release (CTR) for the treatment of carpal tunnel syndrome (CTS). The results showed that both methods were effective and feasible, with LSIs providing better pain relief. However, this superiority was not permanent, so LSIs may be considered in patients with CTS, but CTR should be recommended.
Article
Engineering, Geological
Xinrong Liu, Lojain Suliman, Xiaohan Zhou, Jiwen Wang, Wang Linfeng, Ahmed Abd Elmageed
Summary: This paper investigates the settlement and stress characteristics due to the excavation of twin tunnels in a fill slope through physical model tests and numerical analysis. The results show good agreement between the model test results and numerical analysis, and reveal the influence of different cover depths on settlement.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Construction & Building Technology
Lei Xu
Summary: In order to evaluate the ground vibration caused by metro tunnel operations, it is necessary to extend the near-field vibration of train-track-tunnel to the far-field vibration of train-track-tunnel-soil through numerical analysis. This study proposes an isoparametric element permutation method that integrates triangular prismatic elements and spatial isoperimetric elements to model the tunnel-soil system effectively. The tunnel and soil subsystems are coupled using spring-dashpot elements. The effectiveness of this model is validated through comparison with measurements on site.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2023)
Review
Surgery
Yu-Chieh Lo, Cheng-Han Lin, Shu-Wei Huang, Yu-Pin Chen, Yi-Jie Kuo
Summary: This study evaluated the incidence of trigger finger (TF) after carpal tunnel release (CTR) and found that CTR significantly increased the risk of TF occurrence. Women were more susceptible to developing TF after CTR. Clinicians should be aware of the potential risk of TF after CTR in clinical practice.
INTERNATIONAL JOURNAL OF SURGERY
(2023)
Article
Biophysics
Katherine R. Knaus, Geoffrey G. Handsfield, Silvia S. Blemker
Summary: The study established an image-based finite element model representing the 3D structure of the soleus muscle and its aponeurosis connective tissue, predicting tissue displacements and fascicle architecture changes. The model's initial architecture and changes during passive lengthening were consistent with in vivo data. Model predictions indicated muscle displacements during active lengthening, with average fascicle strains similar between compartments. Further simulations showed how aponeurosis material properties influenced fascicle architecture changes.
JOURNAL OF BIOMECHANICS
(2022)
Article
Engineering, Civil
Jie He, Mei Yin, Xiangyang Wei, Zhenhuang Wu
Summary: Geothermal energy, obtained using ground source heat pumps, can be harnessed from the subsurface. The use of tunnel linings as heat exchangers in energy tunnels is an efficient solution to reduce initial investment. However, the configuration of the pipe network in the energy tunnels still poses a challenge in achieving thermal efficiency. This study aims to optimize the pipe circuits in energy tunnels through numerical analyses, considering the response of tunnel-soil interaction and thermal transient interactions among different components.
Article
Engineering, Geological
Caio Cesar Cardoso da Silva, Denise Bernaud, Mauro de Vasconcellos Real, Samir Maghous
Summary: This paper presents a reliability analysis of deep tunnels reinforced by fully grouted bolts using a homogenization approach. Reliability design analysis is undertaken considering different configurations of bolt usage, as well as the combination of rock bolting and shotcrete lining. The reliability analyses are performed using Monte Carlo simulation, first-order reliability method, and response surface method.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Victor Aguirre Teodoro de Carvalho, Marco Antonio Marques Mattedi, Andrea Vergara-Buenaventura, Francisco Wilker Mustafa Gomes Muniz, Jonathan Meza-Mauricio, Marcelo Faveri, Danilo Lazzari Ciotti
Summary: This study aimed to compare the clinical outcomes of the tunnel technique combined with either thin or thick connective tissue graft for the treatment of localized gingival recession. The results showed that both groups achieved similar reduction in gingival recession, complete root coverage, gingival thickness, root-coverage esthetic score, pain, and self-reported esthetics.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Biophysics
Nathan D. Camarillo, Rafael Jimenez-Silva, Frances T. Sheehan
Summary: This article discusses the statistical dependence between multiple measurements from the same participant and provides recommendations for using these measurements when they are not independent.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
J. Huet, A. -S. Boureau, A. Sarcher, C. Cornu, A. Nordez
Summary: Standard compression in freehand 3D ultrasound induces a bias in volume calculations, but minimal compression and gel pad methods have similar results. With a trained examiner and precautions, the bias can be minimized and become acceptable in clinical applications.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
C. Lariviere, A. H. Eskandari, H. Mecheri, F. Ghezelbash, D. Gagnon, A. Shirazi-Adl
Summary: Recent developments in musculoskeletal modeling have focused on model customization. Personalization of the spine profile may affect estimates of spinal loading and stability. This study investigates the biomechanical consequences of changes in the spinal profile and finds that personalizing the spine profile has medium to large effects on trunk muscle forces and negligible to small effects on spinal loading and stability.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Luke T. Mattar, Arash B. Mahboobin, Adam J. Popchak, William J. Anderst, Volker Musahl, James J. Irrgang, Richard E. Debski
Summary: Exercise therapy fails in about 25.0% of cases for individuals with rotator cuff tears, and one reason for this failure may be the inability to strengthen and balance the muscle forces that keep the humeral head in the correct position. This study developed computational musculoskeletal models to compare the net muscle force before and after exercise therapy between successfully and unsuccessfully treated patients. The study found that unsuccessfully treated patients had less inferiorly oriented net muscle forces, which may increase the risk of impingement.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Natsuki Sado, Takeshi Edagawa, Toshihide Fujimori, Shogo Hashimoto, Yoshikazu Okamoto, Takahito Nakajima
Summary: The existing methods for predicting hip and lumbosacral joint centres in Japanese adults are biased and differ between sexes. We propose new regression equations that consider soft-tissue thickness, sex differences, and a height-directional measure, and validate them using leave-one-out cross-validation.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Peimin Yu, Xuanzhen Cen, Qichang Mei, Alan Wang, Yaodong Gu, Justin Fernandez
Summary: This study aimed to explore the intra-foot biomechanical differences among individuals with chronic ankle instability (CAI), copers, and healthy individuals during dynamic tasks. The study found that copers and CAI individuals had smaller dorsiflexion angles and copers presented a more eversion position compared to healthy participants. Copers also had greater dorsiflexion angles in the metatarsophalangeal joint and more inversion moments in the subtalar joint during certain tasks. These findings can help in designing interventions to restore ankle joint functions in CAI individuals.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Jon Skovgaard Jensen, Anders Holsgaard-Larsen, Anders Stengaard Sorensen, Per Aagaard, Jens Bojsen-Moller
Summary: This study investigates the biomechanical effects of robot-assisted body weight unloading (BWU) on gait patterns in healthy young adults. The results show that dynamic robot-assisted BWU enables reduced kinetic requirements without distorting biomechanically normal gait patterns during overground walking.
JOURNAL OF BIOMECHANICS
(2024)